| Customization: | Available |
|---|---|
| Breaking Capacity: | Low Voltage Circuit Breakers |
| Operation: | Electric Type |
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Indoor high voltage AC load breaker switch refer to international new technology and develop the switching equipment in according to the relevant standards in China's electric power system. Its performance indicators in full compliance IEC420,694,129 and national standards GB3804-2004"3.6kV-0.5kV high voltage AC load breaker switch"GB1985-2004"high-voltage AC isolation switch and earthing switch",GB/ T11022-1999"common technical requirements for high-voltage switchgear and control equipment standards". This is the main switching element RMU.
Ambient air temperatureLimit+40ºC; Lower-25ºC;
Above sea level1000m;
Relative humidity: daily average is less than 95%, on average less than 90%;
Seismic intensity of not more than 8 degrees;
No fire, explosion, chemical corrosion and severe vibration in the workplace;
Load breaker switch adapts double fracture, rotary movable contact structure, with the following three kinds of operating states:Closing,opening, earthing.
Using SF6 gas as an arc extinguishing and insulating medium, the main circuit seals by the upper and lower housing pouring epoxy resin, theconductive function is unaffected by external influences.
Good safety performance. If internal arcing occurs, the housing has an internal structure weak point, it will be rushed to open, followed by the cabinet above the shutter release arc red open air overpressure stream-oriented outside the cabinet, ensure that the switch cabinet security checks.
Load breaker switch sets gates, opening, earthing switch three at one, filled with SF6 gas encapsulated in epoxy resin housing, three-position interlock, compact structure, high security and reliability.
Small size, light weight, maintenance-free, easy and safe to operate.
| Name | Unit | Data | ||
| FLN36-12/630 | FLN36-12D/125-50 witch-fuse combinations |
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| Rated voltage | kV | 12 | 12 | |
| Rated frequency | Hz | 50 | 50 | |
| Rated current | A | 630 | 125 | |
| Rated insulation level | Lightning impulse withstand voltage(peak) | kV | 42 | 48 |
| 1min power frequency withstand voltage | kV | 75 | 85 | |
| Rated thermal current(2S) | kA | 20 | ||
| Rated dynamic current | kA | 50 | ||
| Rated short-circuit on-off current | kA | 25 | ||
| Rated closed loop breaking current | A | 630 | ||
| Rated active on load breaking current | A | 630 | ||
| Rated cable charger breaking current | A | 10 | ||
| Rated short-circuit breaking current(peak) | kA | 50 | ||
| Rated transfer current | A | 1700 | ||
| Fuse type | Sfidj-12 | |||
| Impact output energy | J | 1+0.5 | ||
| Rated thermal current for grounding switch(2S) | kA | 20 | 2 | |
| Rated dynamic current for grounding switch(peak) | kA | 50 | Maximum torque | |
| Rated short-circuit on-off current for grounding switch | kA | 50 | Maximum torque | |
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